Public API
From AltData.wiki, The Alternative Data Encyclopedia
Search catalogue metadata as JSON without a key. Dataset queries return up to 200 rows
per request; use limit and offset to retrieve further pages.
REST
GET /api/v1/datasets?q=&category=&tier=&delivery=&limit=&offset=
GET /api/v1/providers?q=&category=&geography=&verified=
GET /api/v1/categories
GET /api/v1/stats
GET /api/v1/datasets/{slug}/preview?view=0&offset=0 Dataset responses include publisher details, source listings and available coverage, delivery and licensing information. These endpoints provide catalogue metadata, not the underlying data files.
dataset_url links to the original dataset landing page; catalogue_url links to its altdata.wiki record. Landing pages are not direct file downloads.
The preview endpoint returns a limited public sample where available. Its status indicates whether rows are ready, unavailable or can be retried; access to a sample does not replace the source's licence or access terms.
MCP
{ "mcpServers": { "altdata-wiki": { "url": "https://altdata.wiki/api/mcp" } } }llms.txt
curl https://altdata.wiki/llms.txt curl https://altdata.wiki/llms-full.txt